BIOLOGY HIGH SCHOOL

Which statements are additions to cell theory, called modern cell theory?All cells are similair in structure and function.
Cell contains hereditary information that is passed from cell to cell during cell division.
Living cells can be created from dead cells.
All cells perform similair metabolic activities.

Answers

Answer 1
Answer:

Answer:

Second and the last statements are correct.

The statements which are added in the modern cell theory are:

  1. Cell contains genetic material in the form of DNA which is passed from parent cell the daughter cells after cell division.
  2. All cells are similar in chemical composition as well as in metabolic activities.
  3. All the physiological and biochemical functions usually take place inside the cell.
  4. The activity of the cell depends upon the cell organelles and other cellular parts.
Answer 2
Answer: Its cell contains hereditary information that is passed from cell to cell during cell division, and the also all cells perform similar metabolic activities.

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Which mutation causes either the inclusion of an extra chromosome in offspring or the deletion of an entire chromosome?

Answers

The answer to the question stated above is non-disjunction. 

Non-disjunction causes either the inclusion of an extra chromosome in offspring or the deletion of an entire chromosome. Non disjunction during either meiosis I or meiosis II creates gametes that will generate trisomies if fertilized.
The answer is Nondisjunction

Whose roots grow in salt water?

Answers

The roots of a mangrove grow in salt water.
Hope this helps and have a great day!  :D

Most humans are considered _________ because they eat both meat and plants.herbivores
carnivores
vegetarians
omnivores

Answers

Omnivores is a kind of animal that eats other animals and plants, in other words, humans are omnivores, since they eat both plants and animals.Now not ALL of them eat both, but most of them do!

Answer:

D) omnivores

Explanation:

Nitrogen fixation makes nitrogen gas useful to crops.

true or false

Answers

Answer:

True

Explanation:

The nitrogen fixation is a process that involves conversion of atmospheric nitrogen to nitrates in the soil. This process is mainly performed by nitrogen-fixing bacteria present in the soil.

The nitrogen fixation is important for plants and animals. The nitrogen present in the atmosphere cannot be used directly by animals and plants. The nitrogen is main constituent of chlorophyll that is required for the process of photosynthesis and for amino acids that synthesize proteins. Thus, Nitrogen fixation makes nitrogen gas useful to crops.
It is actually True!

Match each item.1. right atrium
A. controls heartbeat
2. superior vena cava
B. sends blood to heart from upper body
3. inferior vena cava
C. brings blood from lungs to heart
4. pulmonary vein
D. sends blood from heart to lungs
5. pulmonary artery
E. sends oxygenated blood from heart to body
6. aorta
F. sends blood to heart from lower body

Answers

Answer:

58

Explanation:

;$+. kw. is isn't is. is

Students are each given a 20 gram sample of an unknown solid compound in a clear plastic bag. They are instructed to break the material into smaller parts by gently hitting it with a hammer. Some of the parts break into large chunks and some look like a fine powder. Which statement correctly describes these broken pieces of the sample? The pieces of fine powder are individual atoms The larger pieces are still compounds and the smaller pieces are elements. Each piece contains the same number of atoms. Each piece contains the same proportion of different elements.

Answers

The correct answer for the question that is being presented above is this one: "Each piece contains the same number of atoms." The statement that correctly describes these broken pieces of the sample is that each piece contains the same number of atoms.
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During this process, the nucleus of a cell divides to form two nuclei that are identical to the original cell